The physical movement of air into and out of lungs is termed
A) external respiration.
B) internal respiration.
C) cellular respiration.
D) pulmonary ventilation.
E) gas diffusion.

Question

Quizplus · Accepted Answer

The physical movement of air into and out of lungs is called pulmonary ventilation. Option A is incorrect as external respiration refers to the exchange of gases between the atmosphere and the body tissues. Option B is incorrect as internal respiration refers to the exchange of gases between the blood and body tissues. Option C is incorrect as cellular respiration is the metabolic process by which cells use oxygen to produce energy. Option E is incorrect as gas diffusion refers to the movement of gases from high concentration to low concentration.

The Physical Movement of Air into and Out of Lungs